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An intermittent microwave-exfoliated non-expansive graphite oxide process for highly-efficient production of high-quality graphene.
Journal of Colloid and Interface Science ( IF 9.4 ) Pub Date : 2020-01-14 , DOI: 10.1016/j.jcis.2020.01.039 Xuefeng Zou 1 , Jiangyu Hao 2 , Yujie Qiang 3 , Bin Xiang 2 , Xinyue Liang 2 , Hujun Shen 1
Journal of Colloid and Interface Science ( IF 9.4 ) Pub Date : 2020-01-14 , DOI: 10.1016/j.jcis.2020.01.039 Xuefeng Zou 1 , Jiangyu Hao 2 , Yujie Qiang 3 , Bin Xiang 2 , Xinyue Liang 2 , Hujun Shen 1
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Redox methods represented by Hummers' method are the most frequently-used pathways to prepare graphene, but to date still very low-efficient, because of its time-consuming washing and hard reduction process. Here we report an intermittent microwave-exfoliated non-expansive graphite oxide (GtO) process to prepare a wrinkled graphene with a high reduction degree (C/O: 19.0), a high defect degree, and a high specific surface area (1333.7 m2 g-1). Findings show that the non-expansive GtO without water washing indicates an almost 100% exfoliated success rate during this intermittent microwave process. The obtained graphene shows easy dispersity in organic solvents, and excellent supercapacitor performance in specific capacitance, rate capacity, and especially in cycling lifetime with no decay after 80,000 cycles at 30 A g-1. Consequently, this special microwave process successfully solves the problems of tedious washing and hard reduction in redox methods, thus exponentially boosting the efficiency of preparing graphene.
中文翻译：
一种间歇式微波剥离非膨胀石墨氧化物工艺，可高效生产高质量的石墨烯。
以Hummers方法为代表的氧化还原方法是制备石墨烯的最常用途径，但由于其耗时的洗涤和硬还原过程，迄今为止效率仍然很低。在此我们报告间歇性的微波剥落非膨胀石墨氧化物（GtO）工艺，以制备具有高还原度（C / O：19.0），高缺陷度和高比表面积（1333.7 m2 g -1）。结果表明，在不进行水洗的情况下，非膨胀GtO表示在此间歇微波过程中剥落的成功率几乎为100％。所获得的石墨烯在有机溶剂中易于分散，在比电容，倍率容量，特别是循环寿命方面表现出优异的超级电容器性能，在30 A g-1的80,000次循环后无衰减。所以，
更新日期：2020-01-14
中文翻译：
一种间歇式微波剥离非膨胀石墨氧化物工艺，可高效生产高质量的石墨烯。
以Hummers方法为代表的氧化还原方法是制备石墨烯的最常用途径，但由于其耗时的洗涤和硬还原过程，迄今为止效率仍然很低。在此我们报告间歇性的微波剥落非膨胀石墨氧化物（GtO）工艺，以制备具有高还原度（C / O：19.0），高缺陷度和高比表面积（1333.7 m2 g -1）。结果表明，在不进行水洗的情况下，非膨胀GtO表示在此间歇微波过程中剥落的成功率几乎为100％。所获得的石墨烯在有机溶剂中易于分散，在比电容，倍率容量，特别是循环寿命方面表现出优异的超级电容器性能，在30 A g-1的80,000次循环后无衰减。所以，
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